Pile-driving machine.



No; 884,631. PATENTED APR. 14; 1908. R. P. BENNETT.

PI-LB DRIVING MACHINE. APPLICATION FILED DISC. 13. 1906.

Fig.1;

Witnesses I lnven tar RAYMOND F. BENNETT, OF PORTLAND, MAINE.

FILE-DRIVING MACHINE.

Application filed December 13, 1906.

Specification of Letters Patent.

Patented April 14, 1908.

Serial No. 347,590.

To all whom it may concern:

Be it known that-I, RAYMOND F. BENNETT, a citizen of the United States, residing at Portland,'in the county of Cumberland and State of Maine, have invented a new and useful Improvement in Pile Driving Machines, of which the following is a specification.

My invention relates to an improvement in the means for moving pile-driving and other like machines about from place to place on the work.

Hitherto it has been a common practice to support pile drivers on two or more elongated ro lers which were journaled to the under side of the sills of the machine by means of bearing blocks fitting over the rollers. The machine was thus able to be slid by suitable tackle lengthwise of the rollers which were kept well greased for this purpose. The movement in the other direction at right angles to the rollers was effected by securing tackle to some outside object in line with the motion desired and hauling in on the fall by means of the winch head, or the rollers were sometimes revolved by hand by means of bars inserted in holes formed in the rollers. Neither of these methods was satisfactory, the first, because suitably located permanent objects were not always to be found and the second method, because of the difficulty of turning the rollers in their large journals by hand, particularly in the case of heavy pile drivers.

The object of my invention is to provide means for moving the rollers and their supported structure as above described at right angles to their length and it consists of means by which one of the rollers is horizontally 'reciprocated from and toward the other whereby the machine may be caused to move intermittently in either direction by trigging the rollers on one side or the other.

I illustrate my invention by means of the accompanying drawing in which Figure 1. represents a side elevation of the bed sills and adjacent parts of a pile driving machine constructed according to my invention with parts cut away to show the working mechanism and Fig. 2 is a plan of the same.

In the drawing, Z, Z, are the leaders, 0 0 the back legs of the gin, n and t are the cross members attached to the sills, s s and holding them in position and w is the winch head,

the engine and other operating parts not being shown.

The machine is shown as resting on the two supporting rollers 1' and 1" which are journaled to the under side of the bed of the machine by means of bearing blocks b b and b b. The bearing blocks 1) b are fixed to the sills s s and the bearing blocks 1) b are held rigidly in a cross-head frame of which the cross members are denoted by a a, the longitudinal members by c c, and the diagonal member by d. This frame is held in alinement under the sills s s b the members 0 c which are between the sil s s s and close to thesame so as to act as guides thus allowing longitudinal movement of the frame with respect to the sills s 8 without lateral movement. The outer sides of the members 0 c, the top surfaces of the bearing block b b, and the concave surfaces of the bearing block b b and I) b and the rollers r 1" vare kept well greased so as to allow of easy movement.

The pile driver is moved sidewise along the rollers r r, and the rollers 1 1" are pulled through from side to side under the machine one at a time by means of suitable tackles and fall, with the fall leading to the winch head win a manner well known to the art but not described here. The winch head to is attached to and operated by the hoisting engine which also operates the pile driving hammer and hoists the pile etc. The hoisting engine is not shown but it sets on the sills s s and forms a part of the machine as in common'practice. Means are provided to horizontally reciprocate the cross head frame and the roller which is journaled to it toward and from the opposite roller to produce an intermittent motion of the machine as hereafter described.

As here shown, the cross head frame is connected throu h the wrist pin p and conneoting rod f and the crank 7r with the vertical shaft 6 of which the crank 7c forms a part.- The shaft 6 is held in bearings formed, as here shown, in the cross pieces 9 g which are attached rigidly to the sills s c. On the end of the shaft 6 and rigidly attached thereto is a reel h and on the reel is wound normally a rope t which is lead through a sheave m to the winch head w. The reel may be of any suitable form but as here shown, I make it oblong in shape so adjusting it on its shaft that it will give the greatest leverage when the greatest force is required to move the connecting rod and the cross head frame. The reel is turned and the cross head frame and the roller r reciprocated by winding the rope i on the reel by hand and taking some turns around the winch head, pulling in the rope and causing the reel to turn.

The machine is caused to move in one direction or the other at right angles to the rollers by trigs placed under one side or the other of both rollers according to the direction desired as the roller 1* is reci rocated. Thus, considerin Fig. 1, if the mac line is to be moved to the eft, the reel is revolved and the rollers which are at their nearest positions are separated by the motion of the cross head frame. At the same time wedges or trigs o are placed under the right hand side of rollers 7" preventing the movement of the roller in that direction and causing the roller 1" and the machine to move to the left. As the reciprocating motion of the frame continues the rollers are drawn toward each other and wedges 'U are held under the right side of roller 1' to prevent it from moving to the right. The roller r is thus caused to move along another notch and being fol lowed up by a trig it can move only in one direction. When it is desired to move the machine in the opposite direction, the trigs are moved on the other sides of the rollers in exactly the reverse order to that described. Other means besides trigs may be used to prevent the rotation of the rollers as, for instance, a hand bar inserted in holes in the rollers or other like means. The process of intermittently moving the machine is kept up until it has reached the desired distance in that direction and the machine is then made to slide along on the rollers to the desired position. These two motions enable the machine to be accurately located at any point within the reach of the two rollers, or by drawing the rollers one at a time beneath the machine, a movement can be obtained for any distance laterally of the bed of the machine in either direction. Thus any point on the work can be readily reached. Other means than the reel here shown may be used to reciprocate the rollers but this forms a cheaply made and practical device. When the rope isall unwound from the reel,

it is rewound by hand and the machine is then ready for anew start.

The reciprocating motion may, if desired, be applied to two of the rollers instead of a single one as described and more than two supporting rollers may be used. This same movement may be effected although less perfectly by having the supporting members nonrotatable so that they will move along the ground, the movement in one or the other direction being checked by suitable means.

I claim:

1. In a pile driver or other like machine, the combination of a pair of supporting rollers ournaled to the machine and means for reciprocating one of said rollers from and toward the other.

2. In a pile driver or other like machine, the combination of a horizontally reciprocating cross head frame, a pair of supporting rollers journaled in the machine, one of said rollers being journaled in said cross head frame.

3. A pile-driver having a pair of supporting rollers on which the pile-driver rests, the pile-driver being journaled to said rollers and adapted to slide longitudinally thereon and means for reciprocating one of said rollers from and toward the other.

4. In a pile driver or other like machine, the combination of a horizontally reciprocatin cross head frame, a pair of supporting ro lers ournaled in the machine, one of said rollers being journaled in said cross head frame, a crank shaft and connecting rod for reciprocating said cross head frame and a reel fixed to said shaft.

7 5. In a pile driver or other like machine, the combination of a horizontally reciprocating cross head frame, a pair of supporting rollers one of which is ournaled in said cross head frame, a crank shaft and connecting rod for reciprocating said cross head frame and means for revolving said shaft.

In witness whereof I have hereunto set my hand this 10th day of December, 1906, in the presence of two witnesses.

RAYMOND F. BENNETT.

Witnesses:

ELEANOR W. DENNIS, S. W. BATES. 

